Serving cart



FIG. 1 is a perspective view of a serving cart showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a left side view thereof, the right side view is a mirror image; and,

FIG. 4 is a top view thereof.

Dotted lines form no part of the design. 

I claim the ornamental design for a serving cart, as shown and described. 